UHF wireless microphone transmitter

A UHF wireless microphone system usually consists of two main parts: a transmitter (TX) and a receiver (RX).

Specifications

• <p class="ql-align-center"> <strong>Specification / Parameter</strong></p><p class="ql-align-center"> <strong>Typical / Common Range or Value</strong></p><p> RF Carrier Frequency Band</p><p> UHF — often somewhere in the ~ 500 MHz to ~ 900 MHz range, depending on region and licensing. &nbsp;</p><p> Number of Channels / Available Frequencies</p><p> Many systems support multiple selectable channels — sometimes dozens (e.g. 100+ or 200 selectable channels depending on model). &nbsp;</p><p> Transmitter RF Output Power</p><p> Typical RF power output around ≈ 10 mW in many systems; some may go up to 30 mW (switchable depending on range/battery) for longer transmission range. &nbsp;</p><p> Audio Frequency Response</p><p> Commonly ~ 40 Hz – 18 kHz (or similar) — enough to cover the full vocal/instrument range. &nbsp;</p><p> Dynamic Range / Signal-to-Noise Ratio (SNR)</p><p> Many decent systems quote &gt; 100 dB dynamic range or SNR for audio path. &nbsp;</p><p> Total Harmonic Distortion (THD)</p><p> Often &lt; 0.5% (or similar low distortion spec) under normal modulation / deviation conditions. &nbsp;</p><p> Operating / Transmission Range (Line‑of‑Sight)</p><p> Common working range values: **~ 50 – 100 meters** under good conditions; some systems up to ~ 150 m+ depending on power, environment, antennas. &nbsp;</p><p> Receiver Sensitivity / RF Receive Threshold</p><p> Example: –95 dBm to –105 dBm (for 12 dB SINAD) for reliable reception depending on system. &nbsp;</p><p> Output / Audio Interface (Receiver Side)</p><p> Balanced (XLR) and/or unbalanced (¼″ / TRS or 3.5 mm) audio outputs to connect to PA, mixer, amplifier, recorder, etc. &nbsp;</p><p> Transmitter Power (Batteries)</p><p> Handheld or body‑pack transmitters often run on 2 × AA batteries (or equivalent). &nbsp;</p><p> Typical Battery Life (Transmitter)</p><p> Often **~ 8–12 hours** continuous use per set of batteries (depending on power output, battery quality). &nbsp;</p><p> Operating Conditions / Temperature Range</p><p> Common operating temperature range: roughly –10 °C to +50 °C (or similar) depending on manufacturer. &nbsp;</p><p> Modulation / Transmission Mode</p><p> FM analog modulation is common in many UHF wireless mic systems. &nbsp;</p><p> </p>